Operation Man Cang? Which company opened the account? Generally not, because when your account reaches the risk control line of the futures company, the futures company will inform you. If you allow it, it may be very strong, if the market really changes. Futures companies generally don't let customers easily explode their positions. This situation is also negative for futures companies, so it is possible that you have been cheated. Of course, this is only possible. Your own operation in Man Cang is really easy to explode.